Quote Originally Posted by DennyW
Glad you found it. In the future, please make sure you include a few more details.

((I have a 430 MEL engine with a 2 barrel inlet and a 2300 2 barrel Holley on top. The engine starts fine and ticks over with no problem and also pumps ok under acceleration but will not run under cruise conditions it is searching and hunting and just a horrible drive)).

No mention of timing, or if you had a point system. If the points were that far off, it should have been dieing also when you were trying to idle. Unless, you had them way to wide to start with.
I put all the details I thought where necessary as it would start, tick over and also accelerate with no problems just would not sit at a cruise throttle position.
The points where set correctly before I swapped them?
But it is working now so the points/condenser must have been starting to break down?